On March 8 Apple threw iOS 14.4.1. This new version included the resolving a security bug related to WebKit reported by two workers from Google and Microsoft. For a few days after the launch, Apple always allows you to reinstall the previous version but when you stop signing that version we will only stay in the version signed by those from Cupertino. A few hours ago Apple stopped signing iOS 14.4 so that users could not go back to iOS 14.4 in case of having installed iOS 14.4.1.
We can no longer go back to iOS 14.4, Apple stops signing the version
iOS 14.4.1 arrived on March 8 and with the version a single security fix. It was discovered by Clément Lecigne and Alison Huffman. The first from a Google threat analysis group and the second from a Microsoft vulnerability research group. These people found a vulnerability in WebKit, an application development platform based on browsers such as Safari.
This vulnerability was found on iPhone 6s and later, iPad Air 2 and later, iPad mini 4 and later, and iPod touch (7th generation), that is, on iOS 14 compatible devices. The impact of this vulnerability meant that arbitrary and malicious code could be executed from one of these websites using the Development Kit. Apple fixed the problem improving the validation of web applications, as reported in the update log.
However, what concerns us today is that Apple has stopped signing iOS 14.4. This means that we will not be able to install iOS 14.4 from the servers of the Big Apple and we will have to stay on the newest version of iOS. In fact, Apple is shipping iOS 14.5 betas to Apple, a huge update that could be the last one until the arrival of iOS 15.